Smart xswiftbus compatibility check based on git commit SHA-1

This is more tolerant that the simple check based on version numbers.
Different versions can be compatible if they have the same SHA-1 when
considering only those files that can influence xswiftbus.

src/plugins/simulator/xplane/simulatorxplane.cpp

@@ -77,11 +77,16 @@ using namespace BlackCore;
 
 namespace
 {
-    inline const QString &xswiftbusServiceName()
+    const QString &xswiftbusServiceName()
     {
         static const QString name("org.swift-project.xswiftbus");
         return name;
     }
+    const QString &commitHash()
+    {
+        static const QString hash(XSWIFTBUS_COMMIT);
+        return hash;
+    }
 }
 
 namespace BlackSimPlugin
@@ -1362,11 +1367,12 @@ namespace BlackSimPlugin
 
             const QString swiftVersion = CBuildConfig::getVersionString();
             const QString xswiftbusVersion = service.getVersionNumber();
+            const QString xswiftbusCommitHash = service.getCommitHash();
             if (xswiftbusVersion.isEmpty())
             {
                 CLogMessage(this).warning(u"Could not determine which version of XSwiftBus is running. Mismatched versions might cause instability.");
             }
-            else if (swiftVersion != xswiftbusVersion)
+            else if (commitHash() != xswiftbusCommitHash)
             {
                 CLogMessage(this).error(u"You are using an incorrect version of XSwiftBus. The version of XSwiftBus (%1) should match the version of swift (%2). Consider upgrading!") << xswiftbusVersion << swiftVersion;
             }

src/plugins/simulator/xplane/xplane.pro

@@ -21,6 +21,9 @@ HEADERS += *.h
 DISTFILES += simulatorxplane.json
 DESTDIR = $$DestRoot/bin/plugins/simulator
 
+isEmpty(XSWIFTBUS_COMMIT): error(Missing XSWIFTBUS_COMMIT variable)
+DEFINES += XSWIFTBUS_COMMIT=\\\"$$XSWIFTBUS_COMMIT\\\"
+
 win32 {
     dlltarget.path = $$PREFIX/bin/plugins/simulator
     INSTALLS += dlltarget

src/plugins/simulator/xplane/xswiftbusserviceproxy.cpp

@@ -43,6 +43,11 @@ namespace BlackSimPlugin
             return m_dbusInterface->callDBusRet<QString>(QLatin1String("getVersionNumber"));
         }
 
+        QString CXSwiftBusServiceProxy::getCommitHash()
+        {
+            return m_dbusInterface->callDBusRet<QString>(QLatin1String("getCommitHash"));
+        }
+
         void CXSwiftBusServiceProxy::getOwnAircraftSituationDataAsync(XPlaneData *o_xplaneData)
         {
             if (!o_xplaneData) { return; }

src/plugins/simulator/xplane/xswiftbusserviceproxy.h

@@ -100,6 +100,9 @@ namespace BlackSimPlugin
             //! Get XSwiftBus version number
             QString getVersionNumber();
 
+            //! Get SHA1 of the last commit that could influence xswiftbus
+            QString getCommitHash();
+
             //! Get own aircraft situation data
             void getOwnAircraftSituationDataAsync(BlackSimPlugin::XPlane::XPlaneData *o_xplaneData);